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In this case study, a 62-year-old male with a history of uncontrolled diabetes and chronic kidney disease was diagnosed with perforating folliculitis after presenting with dark, raised, pruritic lesions on his limbs, confirmed by histopathological examination showing collagen extruding into hair follicles.

In this case report, researchers documented a rare instance of trans-epidermal elimination of insulin formulation in a 45-year-old woman with diabetes, suggesting that insulin or its excipients may have caused a granulomatous reaction leading to skin lesions at injection sites and impaired diabetes control.

This research found that Foxc1 transcription factor and COL17A1 are critical in regulating quiescence and hair thinning in hair follicle stem cells, with aging-related DNA damage leading to hair loss.

The study found that aging in hair follicle stem cells leads to hair follicle miniaturization and eventual hair loss in both wild-type mice and humans by proteolyzing type XVII collagen.

Acquired perforating dermatosis often affects skin in people with kidney issues and diabetes.

This case report observed a subepidermal calcified nodule on the face of a 15-year-old boy, thought to originate from hair follicles, with calcium being eliminated through the skin.

This review details pathologic changes in hair follicles, such as infundibular hyperkeratosis and inflammation, but offers no new diagnostic results.

Sorafenib can cause a temporary skin condition that goes away after stopping the drug.

This review found that lip aging differs significantly from facial aging and suggests focusing on distinct anti-aging strategies for lips, considering gender differences and unique physiological characteristics.

In this study, researchers used a murine model of irritant contact dermatitis to reveal that hair follicle regions serve as key sites for neutrophil transepidermal migration, which requires MMP-9 expression stimulated by dermal monocytes.

This review outlines various clinical methods for assessing ageing skin and discusses their application in supporting the efficacy claims of anti-ageing treatments, but it reports no new clinical results.

This study presented an elderly male with a nodular lesion diagnosed as pilomatricoma and discussed the value of diagnostic tools like dermoscopy and high-frequency ultrasonography, encouraging clinicians to consider pilomatricoma in differential diagnoses of nodular lesions across all ages.

This study found that mice lacking the 1αOHase enzyme, which is responsible for producing a key vitamin D metabolite, showed impaired epidermal differentiation and delayed recovery of skin barrier function after disruption.

This study found that biologically synthesized silver nanoparticle gel demonstrated excellent wound healing efficacy in rats, surpassing both marketed formulations and ionic silver.

This study found that intradermal administration of adipose-derived stem cell–conditioned medium significantly increased hair density and dermal thickness, suggesting potential regenerative effects on both hair follicles and the interfollicular scalp in patients with alopecia.

This review examines non-invasive methods for diagnosing inflammatory skin diseases like lupus erythematosus and psoriatic inflammation using samples from plucked hair and skin tape-strips, but no new clinical results are presented.

This review discusses the role of acyl-CoA binding protein (ACBP) in the epidermal barrier, noting that its disruption in mice is linked to skin and fur abnormalities; it reports no new clinical results.

This study found that camelina oil supplementation was comparable to flaxseed and canola oil in supporting skin and coat health and managing inflammation in dogs over 16 weeks.

This study found that treatment with a synthesized autophagy inducer improved skin barrier function and hair damage in dogs with atopic dermatitis or hyperadrenocorticism by reducing pro-inflammatory cytokines.

This study suggests that the protease HAT-L4 plays a significant role in maintaining epidermal barrier function to prevent body fluid loss, as its absence in mice led to increased fluid loss and higher mortality.

This study found that dietary supplementation with collagen, chondroitin sulfate, low-molecular weight hyaluronic acid, Pycnogenol®, and coenzyme Q10 significantly improved skin hydration, elasticity, nail hardness, and hair condition in patients with age-related dermatological changes after 12 weeks.

This article provides a diagnostic guide for clinicians to differentiate between various hair shaft disorders by using a structured question-by-question approach but does not report new clinical findings.

This issue contains notes by Dr. Bradley Wolf and mentions comments by Dr. Jerry Cooley, but it presents no new research findings.

In this study, bariatric surgery in patients with morbid obesity improved various skin conditions, although acute telogen effluvium was common, with notable reductions in facial sebum and skin elasticity changes.

This manuscript reports on the first case of perforating necrobiosis lipoidica in Colombia, marking the 19th documented case worldwide.

In this study, JAUN soap was found to improve skin conditions, such as moisture, elasticity, and cleansing effectiveness, without adverse reactions, suggesting its potential as a safe and effective ingredient for functional cosmetics.

This study found that mice lacking alkaline ceramidase 1 with elevated skin ceramide levels showed disrupted skin homeostasis, including altered hair follicle structures, increased water loss, and a hypermetabolism phenotype.

This study found that osthole, a coumarin derivative, demonstrated significantly higher skin accumulation and potential skin irritation compared to coumarin, which showed negligible alterations in protein biomarkers.

This study found that men with androgenetic alopecia have different scalp biophysical characteristics in androgen-sensitive areas compared to non-sensitive areas and healthy controls.

In this 2-year prospective study, researchers observed that weight loss through bariatric surgery in patients with morbid obesity led to improvements in various skin conditions, although it also resulted in hair loss (telogen effluvium) for over half of the participants.